Denise Fleury supports her invalid mother in the Montmartre slums by making artificial flowers in a factory. When she loses her job, Denise is convinced by her friend Suzanne to join her working in a cabaret.

Tarzan's son Jack is kidnapped from England by his old enemy Paulovich. Jack escapes into the African jungle where he meets Meriem, a European girl held captive. Freeing her, he falls in love but she's sought by Paulovich. Then Tarzan arrives with Jane to save the day!

A murderous gang of mysterious creepy killers mark a young heiress for death. They are led by a ghostly voice known only as the "The Mystery Mind."